ISM303DAC datasheet(74/80 Pages) STMICROELECTRONICS

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ISM303DAC

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8.42

STATUS_REG_M (67h)

The status register is an 8-bit read-only register. This register is used to indicate device

status. SR0 through SR7 indicate bit locations, with SR denoting the bits that are in the

status register. SR7 denotes the first bit of the data stream.

Table 104. STATUS_REG_M register

8.43

OUTX_L_REG_M, OUTX_H_REG_M (68h - 69h)

The data output X registers are two 8-bit registers, data output ch1 MSB register (69h) and

output X LSB register (68h).

The output data represents the raw magnetic data only if OFFSET_X_REG is equal to zero,

otherwise hard-iron calibration is included.

Table 106. OUTX_L_REG_M register

Table 107. OUTX_H_REG_M register

The value of the magnetic field is expressed in two’s complement. This register contains the

X component of the magnetic data.

Zyxor

zor

yor

xor

Zyxda

zda

yda

xda

Table 105. STATUS_REG_M register description

Zyxor

X-, Y- and Z-axis data overrun. Default value: 0

(0: no overrun has occurred; 1: a new set of data has overwritten the previous set).

zor

Z-axis data overrun. Default value: 0

(0: no overrun has occurred; 1: new data for the Z-axis has overwritten the previous data).

yor

Y-axis data overrun. Default value: 0

(0: no overrun has occurred; 1: new data for the Y-axis has overwritten the previous data).

xor

X-axis data overrun. Default value: 0

(0: no overrun has occurred; 1: new data for the X-axis has overwritten the previous data).

Zyxda

X-, Y- and Z-axis new data available. Default value: 0

(0: a new set of data is not yet available; 1: a new set of data is available).

zda

Z-axis new data available. Default value: 0

(0: a new data for the Z-axis is not yet available; 1: a new data for the Z-axis is available)

yda

Y-axis new data available. Default value: 0

(0: a new data for the Y-axis is not yet available; 1: a new data for the Y-axis is available)

xda

X-axis new data available. Default value: 0

(0: a new data for the X-axis is not yet available; 1: a new data for the X-axis is available)

0000

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